diff --git a/.vsts-ci.yml b/.vsts-ci.yml
index b966a4c8c7ff..1b2696c845e3 100644
--- a/.vsts-ci.yml
+++ b/.vsts-ci.yml
@@ -293,15 +293,13 @@ extends:
               runTests: false
 
       ############### SOURCE BUILD ###############
-      # Temporarily removed until the SDK can target net10. The assets produced by upstream repos
-      # are net10, but this repo needs net9.
-      # - template: /eng/common/templates-official/job/source-build.yml@self
-      #   parameters:
-      #     platform:
-      #       name: Managed
-      #       container: centosStream9
-      #       jobProperties:
-      #         timeoutInMinutes: 30
+      - template: /eng/common/templates-official/job/source-build.yml@self
+        parameters:
+          platform:
+            name: Managed
+            container: centosStream9
+            jobProperties:
+              timeoutInMinutes: 30
 
       ############### DOTNET-FORMAT ###############
       - ${{ if or(eq(parameters.runTestBuild, true), eq(variables['Build.Reason'], 'PullRequest')) }}:
diff --git a/.vsts-pr.yml b/.vsts-pr.yml
index ee6748b90f33..838aa699d3f3 100644
--- a/.vsts-pr.yml
+++ b/.vsts-pr.yml
@@ -65,15 +65,13 @@ stages:
       helixTargetQueue: osx.13.amd64.open
 
   ############### SOURCE BUILD ###############
-  # Temporarily removed until the SDK can target net10. The assets produced by upstream repos
-  # are net10, but this repo needs net9.
-  # - template: /eng/common/templates-official/job/source-build.yml@self
-  #   parameters:
-  #     platform:
-  #       name: Managed
-  #       container: centosStream9
-  #       jobProperties:
-  #         timeoutInMinutes: 30
+  - template: /eng/common/templates/job/source-build.yml@self
+    parameters:
+      platform:
+        name: Managed
+        container: centosStream9
+        jobProperties:
+          timeoutInMinutes: 30
 
   ############### DOTNET-FORMAT ###############
   - template: /eng/dotnet-format/dotnet-format-integration.yml
diff --git a/Directory.Build.props b/Directory.Build.props
index 9552cf270487..4d4369595efd 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -37,6 +37,7 @@
     <SdkTargetFramework>net10.0</SdkTargetFramework>
     <!-- TODO: Remove when Arcade updated NetCurrent to net10.0. -->
     <NetCurrent>net10.0</NetCurrent>
+    <NetToolMinimum Condition="'$(DotNetBuildSourceOnly)' == 'true'">$(NetCurrent)</NetToolMinimum>
     <ToolsetTargetFramework>$(SdkTargetFramework)</ToolsetTargetFramework>
     <VisualStudioServiceTargetFramework>net8.0</VisualStudioServiceTargetFramework>
 
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index f158acb38adb..7ab0b595f844 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -135,17 +135,13 @@
       <Uri>https://github.com/dotnet/roslyn</Uri>
       <Sha>543cb4568f28b0d2f2cfecdf2d56365b9252e848</Sha>
     </Dependency>
-    <!-- Temporarily pinned to a net9 supporting version until the SDK can target net10.
-         See https://github.com/dotnet/sdk/issues/42920. -->
-    <Dependency Name="Microsoft.AspNetCore.DeveloperCertificates.XPlat" Version="9.0.0-rc.2.24474.3" Pinned="true">
+    <Dependency Name="Microsoft.AspNetCore.DeveloperCertificates.XPlat" Version="10.0.0-alpha.2.24563.16">
       <Uri>https://github.com/dotnet/aspnetcore</Uri>
-      <Sha>280c613963a1768b810d09f32c998fe4490855e9</Sha>
+      <Sha>eb68e016a554b4da50d7fb0aeffe897cfabf36c7</Sha>
     </Dependency>
-    <!-- Temporarily pinned to a net9 supporting version until the SDK can target net10.
-         See https://github.com/dotnet/sdk/issues/42920. -->
-    <Dependency Name="Microsoft.AspNetCore.TestHost" Version="9.0.0-rc.2.24474.3" Pinned="true">
+    <Dependency Name="Microsoft.AspNetCore.TestHost" Version="10.0.0-alpha.2.24563.16">
       <Uri>https://github.com/dotnet/aspnetcore</Uri>
-      <Sha>280c613963a1768b810d09f32c998fe4490855e9</Sha>
+      <Sha>eb68e016a554b4da50d7fb0aeffe897cfabf36c7</Sha>
     </Dependency>
     <Dependency Name="Microsoft.Build.NuGetSdkResolver" Version="6.12.1-rc.1">
       <Uri>https://github.com/nuget/nuget.client</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 04388b7ad7d1..211574aa9bd3 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -233,12 +233,12 @@
   <PropertyGroup>
     <!-- Dependencies from https://github.com/aspnet/AspNetCore -->
     <MicrosoftAspNetCoreAppRefPackageVersion>10.0.0-alpha.2.24568.8</MicrosoftAspNetCoreAppRefPackageVersion>
-    <MicrosoftAspNetCoreDeveloperCertificatesXPlatPackageVersion>9.0.0-rc.2.24474.3</MicrosoftAspNetCoreDeveloperCertificatesXPlatPackageVersion>
+    <MicrosoftAspNetCoreDeveloperCertificatesXPlatPackageVersion>10.0.0-alpha.2.24568.8</MicrosoftAspNetCoreDeveloperCertificatesXPlatPackageVersion>
     <MicrosoftAspNetCoreComponentsSdkAnalyzersPackageVersion>10.0.0-alpha.2.24568.8</MicrosoftAspNetCoreComponentsSdkAnalyzersPackageVersion>
     <MicrosoftAspNetCoreMvcAnalyzersPackageVersion>10.0.0-alpha.2.24568.8</MicrosoftAspNetCoreMvcAnalyzersPackageVersion>
     <MicrosoftAspNetCoreMvcApiAnalyzersPackageVersion>10.0.0-alpha.2.24568.8</MicrosoftAspNetCoreMvcApiAnalyzersPackageVersion>
     <MicrosoftAspNetCoreAnalyzersPackageVersion>10.0.0-alpha.2.24568.8</MicrosoftAspNetCoreAnalyzersPackageVersion>
-    <MicrosoftAspNetCoreTestHostPackageVersion>9.0.0-rc.2.24474.3</MicrosoftAspNetCoreTestHostPackageVersion>
+    <MicrosoftAspNetCoreTestHostPackageVersion>10.0.0-alpha.2.24568.8</MicrosoftAspNetCoreTestHostPackageVersion>
     <MicrosoftAspNetCoreAppRuntimewinx64PackageVersion>10.0.0-alpha.2.24568.8</MicrosoftAspNetCoreAppRuntimewinx64PackageVersion>
     <MicrosoftAspNetCoreAppRefInternalPackageVersion>10.0.0-alpha.2.24568.8</MicrosoftAspNetCoreAppRefInternalPackageVersion>
     <VSRedistCommonAspNetCoreSharedFrameworkx64100PackageVersion>10.0.0-alpha.2.24568.8</VSRedistCommonAspNetCoreSharedFrameworkx64100PackageVersion>
diff --git a/eng/pipelines/templates/stages/vmr-build.yml b/eng/pipelines/templates/stages/vmr-build.yml
index 33a4bdae80b6..1d2083389922 100644
--- a/eng/pipelines/templates/stages/vmr-build.yml
+++ b/eng/pipelines/templates/stages/vmr-build.yml
@@ -942,6 +942,64 @@ stages:
             targetArchitecture: arm64
             targetRid: ${{ variables.linuxMuslArm64Rid }}
 
+        - template: ../jobs/vmr-build.yml
+          parameters:
+            buildName: AzureLinux_x64_Cross_ShortStack_Alpine_Mono_CrossAOT
+            isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
+            vmrBranch: ${{ variables.VmrBranch }}
+            architecture: x64
+            pool: ${{ parameters.pool_Linux }}
+            container: ${{ variables.azurelinuxX64AlpineCrossContainer }}
+            crossRootFs: '/crossrootfs/x64'
+            targetOS: linux-musl
+            targetArchitecture: x64
+            targetRid: ${{ variables.linuxMuslX64Rid }}
+            extraProperties: /p:DotNetBuildMonoCrossAOT=true
+            runTests: false
+
+        - template: ../jobs/vmr-build.yml
+          parameters:
+            buildName: AzureLinux_x64_Cross_ShortStack_Alpine_Mono_CrossAOT
+            isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
+            vmrBranch: ${{ variables.VmrBranch }}
+            architecture: arm64
+            pool: ${{ parameters.pool_Linux }}
+            container: ${{ variables.azurelinuxArm64AlpineCrossContainer }}
+            crossRootFs: '/crossrootfs/arm64'
+            targetOS: linux-musl
+            targetArchitecture: arm64
+            targetRid: ${{ variables.linuxMuslX64Rid }}
+            extraProperties: /p:DotNetBuildMonoCrossAOT=true
+            runTests: false
+
+        - template: ../jobs/vmr-build.yml
+          parameters:
+            buildName: AzureLinux_x64_Cross_ShortStack_Mono_CrossAOT
+            isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
+            vmrBranch: ${{ variables.VmrBranch }}
+            architecture: x64
+            pool: ${{ parameters.pool_Linux_Shortstack }}
+            container: ${{ variables.azurelinuxX64CrossContainer }}
+            crossRootFs: '/crossrootfs/x64'
+            targetOS: linux
+            targetArchitecture: x64
+            extraProperties: /p:DotNetBuildMonoCrossAOT=true
+            runTests: false
+
+        - template: ../jobs/vmr-build.yml
+          parameters:
+            buildName: AzureLinux_x64_Cross_ShortStack_Mono_CrossAOT
+            isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
+            vmrBranch: ${{ variables.VmrBranch }}
+            architecture: arm64
+            pool: ${{ parameters.pool_Linux_Shortstack }}
+            container: ${{ variables.azurelinuxArm64CrossContainer }}
+            crossRootFs: '/crossrootfs/arm64'
+            targetOS: linux
+            targetArchitecture: arm64
+            extraProperties: /p:DotNetBuildMonoCrossAOT=true
+            runTests: false
+
         - template: ../jobs/vmr-build.yml
           parameters:
             buildName: AzureLinux_x64_Cross_ShortStack_Mono_LLVMAOT
@@ -993,6 +1051,30 @@ stages:
             targetOS: osx
             targetArchitecture: arm64
 
+        - template: ../jobs/vmr-build.yml
+          parameters:
+            buildName: OSX_ShortStack_Mono_CrossAOT
+            isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
+            vmrBranch: ${{ variables.VmrBranch }}
+            architecture: x64
+            pool: ${{ parameters.pool_Mac }}
+            targetOS: osx
+            targetArchitecture: x64
+            extraProperties: /p:DotNetBuildMonoCrossAOT=true
+            runTests: false
+
+        - template: ../jobs/vmr-build.yml
+          parameters:
+            buildName: OSX_ShortStack_Mono_CrossAOT
+            isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
+            vmrBranch: ${{ variables.VmrBranch }}
+            architecture: arm64
+            pool: ${{ parameters.pool_Mac }}
+            targetOS: osx
+            targetArchitecture: arm64
+            extraProperties: /p:DotNetBuildMonoCrossAOT=true
+            runTests: false
+
         - template: ../jobs/vmr-build.yml
           parameters:
             buildName: OSX_ShortStack_Mono_LLVMJIT
@@ -1051,6 +1133,30 @@ stages:
             targetOS: windows
             targetArchitecture: x64
 
+        - template: ../jobs/vmr-build.yml
+          parameters:
+            buildName: Windows_ShortStack_Mono_CrossAOT
+            isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
+            vmrBranch: ${{ variables.VmrBranch }}
+            architecture: x64
+            pool: ${{ parameters.pool_Windows }}
+            targetOS: windows
+            targetArchitecture: x64
+            extraProperties: /p:DotNetBuildMonoCrossAOT=true
+            runTests: false
+
+        - template: ../jobs/vmr-build.yml
+          parameters:
+            buildName: Windows_ShortStack_Mono_CrossAOT
+            isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
+            vmrBranch: ${{ variables.VmrBranch }}
+            architecture: arm64
+            pool: ${{ parameters.pool_Windows }}
+            targetOS: windows
+            targetArchitecture: arm64
+            extraProperties: /p:DotNetBuildMonoCrossAOT=true
+            runTests: false
+
         - template: ../jobs/vmr-build.yml
           parameters:
             buildName: Windows
diff --git a/src/SourceBuild/content/Directory.Build.props b/src/SourceBuild/content/Directory.Build.props
index f088f0499d2e..2de080d8f33e 100644
--- a/src/SourceBuild/content/Directory.Build.props
+++ b/src/SourceBuild/content/Directory.Build.props
@@ -19,7 +19,7 @@
     <HostOS Condition="'$(HostOS)' == ''">$(TargetOS)</HostOS>
   </PropertyGroup>
 
-  <!-- This is a list of cases where we aren't producing a whole SDK, just a runtime. This list should be kept in sync with https://github.com/dotnet/runtime/blob/main/eng/SourceBuild.props#L26 -->
+  <!-- This is a list of cases where we aren't producing a whole SDK, just a runtime. This list should be kept in sync with https://github.com/dotnet/runtime/blob/main/eng/DotNetBuild.props#L26 -->
   <PropertyGroup Label="ShortStacks">
     <ShortStack Condition="'$(TargetOS)' == 'wasi'">true</ShortStack>
     <ShortStack Condition="'$(TargetOS)' == 'browser'">true</ShortStack>
@@ -34,6 +34,8 @@
     <ShortStack Condition="'$(TargetOS)' == 'osx' and '$(DotNetBuildRuntimeNativeAOTRuntimePack)' == 'true'">true</ShortStack>
     <!-- Mono LLVM builds are short -->
     <ShortStack Condition="'$(MonoEnableLLVM)' == 'true' or '$(MonoAOTEnableLLVM)' == 'true'">true</ShortStack>
+    <!-- Mono AOT cross compiler builds are short -->
+    <ShortStack Condition="'$(DotNetBuildMonoCrossAOT)' == 'true'">true</ShortStack>
     <!-- Short stack builds stop at runtime, not the whole SDK -->
     <RootRepo Condition="'$(ShortStack)' == 'true'">runtime</RootRepo>
   </PropertyGroup>
diff --git a/src/SourceBuild/content/repo-projects/msbuild.proj b/src/SourceBuild/content/repo-projects/msbuild.proj
index d37114a0f742..e50e9d7613a5 100644
--- a/src/SourceBuild/content/repo-projects/msbuild.proj
+++ b/src/SourceBuild/content/repo-projects/msbuild.proj
@@ -18,9 +18,7 @@
 
   <ItemGroup Condition="'$(DotNetBuildSourceOnly)' == 'true'">
     <RepositoryReference Include="roslyn" />
-    <!-- Dependency temporarily removed while transitioning to net10.
-         See https://github.com/dotnet/sdk/issues/42920. -->
-    <!-- <RepositoryReference Include="runtime" /> -->
+    <RepositoryReference Include="runtime" />
     <RepositoryReference Include="source-build-reference-packages" />
   </ItemGroup>
 
diff --git a/src/SourceBuild/content/repo-projects/nuget-client.proj b/src/SourceBuild/content/repo-projects/nuget-client.proj
index 81eb39fc37c2..45380380ad50 100644
--- a/src/SourceBuild/content/repo-projects/nuget-client.proj
+++ b/src/SourceBuild/content/repo-projects/nuget-client.proj
@@ -20,9 +20,7 @@
 
   <ItemGroup Condition="'$(DotNetBuildSourceOnly)' == 'true'">
     <RepositoryReference Include="msbuild" />
-    <!-- Dependency temporarily removed while transitioning to net10.
-         See https://github.com/dotnet/sdk/issues/42920. -->
-    <!-- <RepositoryReference Include="runtime" /> -->
+    <RepositoryReference Include="runtime" />
     <RepositoryReference Include="source-build-externals" />
     <RepositoryReference Include="xdt" />
   </ItemGroup>
diff --git a/src/SourceBuild/content/repo-projects/roslyn-analyzers.proj b/src/SourceBuild/content/repo-projects/roslyn-analyzers.proj
index 04c0b70e19d3..57c6b4a5c39a 100644
--- a/src/SourceBuild/content/repo-projects/roslyn-analyzers.proj
+++ b/src/SourceBuild/content/repo-projects/roslyn-analyzers.proj
@@ -11,9 +11,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(DotNetBuildSourceOnly)' == 'true'">
-    <!-- Dependency temporarily removed while transitioning to net10.
-         See https://github.com/dotnet/sdk/issues/42920. -->
-    <!-- <RepositoryReference Include="runtime" /> -->
+    <RepositoryReference Include="runtime" />
     <RepositoryReference Include="source-build-externals" />
     <RepositoryReference Include="source-build-reference-packages" />
   </ItemGroup>
diff --git a/src/SourceBuild/content/repo-projects/roslyn.proj b/src/SourceBuild/content/repo-projects/roslyn.proj
index b5df8da7286d..0d7b27c74b62 100644
--- a/src/SourceBuild/content/repo-projects/roslyn.proj
+++ b/src/SourceBuild/content/repo-projects/roslyn.proj
@@ -37,9 +37,7 @@
 
   <ItemGroup Condition="'$(DotNetBuildSourceOnly)' == 'true'">
     <RepositoryReference Include="roslyn-analyzers" />
-    <!-- Dependency temporarily removed while transitioning to net10.
-         See https://github.com/dotnet/sdk/issues/42920. -->
-    <!-- <RepositoryReference Include="runtime" /> -->
+    <RepositoryReference Include="runtime" />
     <RepositoryReference Include="source-build-externals" />
     <RepositoryReference Include="source-build-reference-packages" />
     <RepositoryReference Include="symreader" />
diff --git a/src/SourceBuild/content/repo-projects/runtime.proj b/src/SourceBuild/content/repo-projects/runtime.proj
index 6ece535e2a89..5c187068e132 100644
--- a/src/SourceBuild/content/repo-projects/runtime.proj
+++ b/src/SourceBuild/content/repo-projects/runtime.proj
@@ -14,6 +14,7 @@
     <BuildArgs Condition="'$(DotNetBuildMonoEnableLLVM)' != ''">$(BuildArgs) /p:DotNetBuildMonoEnableLLVM=$(DotNetBuildMonoEnableLLVM)</BuildArgs>
     <BuildArgs Condition="'$(DotNetBuildMonoAOTEnableLLVM)' != ''">$(BuildArgs) /p:DotNetBuildMonoAOTEnableLLVM=$(DotNetBuildMonoAOTEnableLLVM)</BuildArgs>
     <BuildArgs Condition="'$(DotNetBuildMonoBundleLLVMOptimizer)' != ''">$(BuildArgs) /p:DotNetBuildMonoBundleLLVMOptimizer=$(DotNetBuildMonoBundleLLVMOptimizer)</BuildArgs>
+    <BuildArgs Condition="'$(DotNetBuildMonoCrossAOT)' != ''">$(BuildArgs) /p:DotNetBuildMonoCrossAOT=$(DotNetBuildMonoCrossAOT)</BuildArgs>
     <BuildArgs Condition="'$(PgoInstrument)' == 'true'">$(BuildArgs) $(FlagParameterPrefix)pgoinstrument</BuildArgs>
     <BuildArgs Condition="'$(UseSystemLibs)' != ''">$(BuildArgs) /p:UseSystemLibs=$(UseSystemLibs)</BuildArgs>
 
diff --git a/src/SourceBuild/patches/runtime/0001-mono-Fix-output-directory-for-cross-compilers-if-Out.patch b/src/SourceBuild/patches/runtime/0001-mono-Fix-output-directory-for-cross-compilers-if-Out.patch
new file mode 100644
index 000000000000..76d5f11a5849
--- /dev/null
+++ b/src/SourceBuild/patches/runtime/0001-mono-Fix-output-directory-for-cross-compilers-if-Out.patch
@@ -0,0 +1,108 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Alexander=20K=C3=B6plinger?= <alex.koeplinger@outlook.com>
+Date: Mon, 18 Nov 2024 22:38:56 +0100
+Subject: [PATCH] [mono] Fix output directory for cross compilers if OutputRID
+ is overridden
+
+This happens e.g. in the VMR where OutputRID is set globally. We assumed in monoaotcross.proj that the inner mono cross compiler runtime build would put files into a path that matches the target RID but we were using OutputRID in the inner build.
+
+Instead use the preexisting MonoAotCrossDir property.
+---
+ eng/DotNetBuild.props      |  1 +
+ src/mono/mono.proj         | 16 ++++++++--------
+ src/mono/monoaotcross.proj |  7 +++++--
+ 3 files changed, 14 insertions(+), 10 deletions(-)
+
+diff --git a/eng/DotNetBuild.props b/eng/DotNetBuild.props
+index 49f7bdaf9cf..fb0e235841f 100644
+--- a/eng/DotNetBuild.props
++++ b/eng/DotNetBuild.props
+@@ -33,6 +33,7 @@
+     <ShortStack Condition="'$(TargetOS)' == 'maccatalyst'">true</ShortStack>
+     <ShortStack Condition="'$(TargetOS)' == 'android'">true</ShortStack>
+     <ShortStack Condition="'$(TargetOS)' == 'linux-bionic'">true</ShortStack>
++    <ShortStack Condition="'$(DotNetBuildMonoCrossAOT)' == 'true'">true</ShortStack>
+   </PropertyGroup>
+ 
+   <Target Name="GetRuntimeSourceBuildCommandConfiguration"
+diff --git a/src/mono/mono.proj b/src/mono/mono.proj
+index 56eb36acbc7..a9bdbb62e0a 100644
+--- a/src/mono/mono.proj
++++ b/src/mono/mono.proj
+@@ -1094,16 +1094,16 @@ JS_ENGINES = [NODE_JS]
+         <Destination>$(RuntimeBinDir)$(MonoStaticLibFileName)</Destination>
+       </_MonoRuntimeArtifacts>
+       <_MonoRuntimeArtifacts Include="$(_MonoAotCrossFilePath)" Condition="Exists($(_MonoAotCrossFilePath))">
+-        <Destination>$(RuntimeBinDir)cross\$(OutputRID)\$(MonoAotCrossName)$(ExeSuffix)</Destination>
++        <Destination>$(MonoAotCrossDir)$(MonoAotCrossName)$(ExeSuffix)</Destination>
+       </_MonoRuntimeArtifacts>
+       <_MonoRuntimeArtifacts Include="$(_MonoAotCrossFilePath).dbg" Condition="Exists('$(_MonoAotCrossFilePath).dbg')">
+-        <Destination>$(RuntimeBinDir)cross\$(OutputRID)\$(MonoAotCrossName).dbg</Destination>
++        <Destination>$(MonoAotCrossDir)$(MonoAotCrossName).dbg</Destination>
+       </_MonoRuntimeArtifacts>
+       <_MonoRuntimeArtifacts Include="$(_MonoAotCrossFilePath).dwarf" Condition="Exists('$(_MonoAotCrossFilePath).dwarf')">
+-        <Destination>$(RuntimeBinDir)cross\$(OutputRID)\$(MonoAotCrossName).dwarf</Destination>
++        <Destination>$(MonoAotCrossDir)$(MonoAotCrossName).dwarf</Destination>
+       </_MonoRuntimeArtifacts>
+       <_MonoRuntimeArtifacts Include="$(MonoObjCrossDir)out\bin\PDB\$(MonoAotCrossName).pdb" Condition="Exists('$(MonoObjCrossDir)out\bin\PDB\$(MonoAotCrossName).pdb')">
+-        <Destination>$(RuntimeBinDir)cross\$(OutputRID)\$(MonoAotCrossName).pdb</Destination>
++        <Destination>$(MonoAotCrossDir)$(MonoAotCrossName).pdb</Destination>
+       </_MonoRuntimeArtifacts>
+       <!-- copy the mono runtime component shared or static libraries -->
+       <_MonoRuntimeArtifacts Include="@(_MonoRuntimeComponentsStaticFilePath)">
+@@ -1119,10 +1119,10 @@ JS_ENGINES = [NODE_JS]
+         <Destination>$(RuntimeBinDir)libc++abi.so.1</Destination>
+       </_MonoRuntimeArtifacts>
+       <_MonoRuntimeArtifacts Condition="'$(HostOS)' == 'Linux' and ((('$(MonoAOTBundleLLVMOptimizer)' == 'true' or '$(MonoAOTEnableLLVM)' == 'true') and '$(MonoUseLibCxx)' == 'true') or '$(TargetArchitecture)' == 'wasm')" Include="$(MonoLLVMDir)\$(_MonoLLVMHostArchitecture)\lib\libc++.so.1">
+-        <Destination>$(RuntimeBinDir)cross\$(OutputRID)\libc++.so.1</Destination>
++        <Destination>$(MonoAotCrossDir)libc++.so.1</Destination>
+       </_MonoRuntimeArtifacts>
+       <_MonoRuntimeArtifacts Condition="'$(HostOS)' == 'Linux' and ((('$(MonoAOTBundleLLVMOptimizer)' == 'true' or '$(MonoAOTEnableLLVM)' == 'true') and '$(MonoUseLibCxx)' == 'true') or '$(TargetArchitecture)' == 'wasm')" Include="$(MonoLLVMDir)\$(_MonoLLVMHostArchitecture)\lib\libc++abi.so.1">
+-        <Destination>$(RuntimeBinDir)cross\$(OutputRID)\libc++abi.so.1</Destination>
++        <Destination>$(MonoAotCrossDir)libc++abi.so.1</Destination>
+       </_MonoRuntimeArtifacts>
+       <_MonoRuntimeArtifacts Condition="'$(MonoBundleLLVMOptimizer)' == 'true'" Include="$(MonoLLVMDir)\$(_MonoLLVMHostArchitecture)\bin\llc$(ExeSuffix)">
+         <Destination>$(RuntimeBinDir)\llc$(ExeSuffix)</Destination>
+@@ -1131,10 +1131,10 @@ JS_ENGINES = [NODE_JS]
+         <Destination>$(RuntimeBinDir)\opt$(ExeSuffix)</Destination>
+       </_MonoRuntimeArtifacts>
+       <_MonoRuntimeArtifacts Condition="'$(MonoAOTBundleLLVMOptimizer)' == 'true'" Include="$(MonoLLVMDir)\$(_MonoLLVMHostArchitecture)\bin\llc$(ExeSuffix)">
+-        <Destination>$(RuntimeBinDir)cross\$(OutputRID)\llc$(ExeSuffix)</Destination>
++        <Destination>$(MonoAotCrossDir)llc$(ExeSuffix)</Destination>
+       </_MonoRuntimeArtifacts>
+       <_MonoRuntimeArtifacts Condition="'$(MonoAOTBundleLLVMOptimizer)' == 'true'" Include="$(MonoLLVMDir)\$(_MonoLLVMHostArchitecture)\bin\opt$(ExeSuffix)">
+-        <Destination>$(RuntimeBinDir)cross\$(OutputRID)\opt$(ExeSuffix)</Destination>
++        <Destination>$(MonoAotCrossDir)opt$(ExeSuffix)</Destination>
+       </_MonoRuntimeArtifacts>
+       <_MonoIncludeArtifacts Include="$(MonoObjDir)out\include\**" />
+       <_MonoRuntimeArtifacts Condition="'$(MonoComponentsStatic)' != 'true' and Exists('$(MonoObjDir)out\lib\Mono.release.framework')" Include="@(_MonoRuntimeComponentsSharedFilePath)">
+diff --git a/src/mono/monoaotcross.proj b/src/mono/monoaotcross.proj
+index c747e87f763..d5969fb48fd 100644
+--- a/src/mono/monoaotcross.proj
++++ b/src/mono/monoaotcross.proj
+@@ -43,20 +43,23 @@
+       <MonoAotTargetArchitecture>$(MonoAotTargetRid.Substring($([MSBuild]::Add(1, $(MonoAotTargetRid.LastIndexOf('-'))))))</MonoAotTargetArchitecture>
+       <MonoAotHostOS>$(TargetOS)</MonoAotHostOS>
+       <MonoAotHostOS Condition="'$(TargetsLinuxMusl)' == 'true'">linux-musl</MonoAotHostOS>
++      <MonoAotHostArchitecture>$(TargetArchitecture)</MonoAotHostArchitecture>
+     </PropertyGroup>
+ 
+     <MSBuild Targets="Build"
+              Projects="$(MSBuildThisFileDirectory)llvm\llvm-init.proj"
+-             Properties="TargetArchitecture=$(MonoAotTargetArchitecture);TargetOS=$(MonoAotTargetOS);AotHostArchitecture=$(TargetArchitecture)" />
++             Properties="TargetArchitecture=$(MonoAotTargetArchitecture);TargetOS=$(MonoAotTargetOS);AotHostOS=$(MonoAotHostOS);AotHostArchitecture=$(MonoAotHostArchitecture)" />
+ 
+     <MSBuild Targets="BuildMono"
+              Projects="$(MSBuildThisFileDirectory)mono.proj"
+-             Properties="AotHostOS=$(MonoAotHostOS);AotHostArchitecture=$(TargetArchitecture);BuildMonoAOTCrossCompilerOnly=true;TargetArchitecture=$(MonoAotTargetArchitecture);TargetOS=$(MonoAotTargetOS)" />
++             Properties="AotHostOS=$(MonoAotHostOS);AotHostArchitecture=$(MonoAotHostArchitecture);BuildMonoAOTCrossCompilerOnly=true;TargetArchitecture=$(MonoAotTargetArchitecture);TargetOS=$(MonoAotTargetOS)" />
+ 
+     <ItemGroup>
+       <_MonoAOTCrossFiles Include="$(ArtifactsBinDir)mono\$(MonoAotTargetOS).$(MonoAotTargetArchitecture).$(Configuration)\cross\$(MonoAotTargetRid.ToLower())\**" />
+     </ItemGroup>
+ 
++    <Error Condition="'@(_MonoAOTCrossFiles)' == '' and '$(MonoGenerateOffsetsOSGroups)' == ''" Text="No AOT cross files found for $(MonoAotTargetRid)" />
++
+     <Message Text="Copying @(_MonoAOTCrossFiles) to $(RealRuntimeBinDir)cross\$(TargetOS)-$(TargetArchitecture.ToLower())\$(MonoAotTargetRid.ToLower())" Importance="High" />
+ 
+     <Copy SourceFiles="@(_MonoAOTCrossFiles)" DestinationFolder="$(RealRuntimeBinDir)cross\$(TargetOS)-$(TargetArchitecture.ToLower())\$(MonoAotTargetRid.ToLower())">